Answer:
BC = 25
Step-by-step explanation:
If the base angles are equal, then the sides opposite them are as well.
- 4x + 4 = 6x - 14 Subtract 4x from both sides
- 4x - 4x + 4 = 6x - 4x - 14 Combine
- 4 = 2x - 14 Add 14 to both sides
- 4 + 14 = 2x - 14 + 14 Combine
- 18 = 2x Divide by 2 and switch
- 2x/2 = 18/2 Combine
- x = 9
But that's not what you are asked for. You want the value of 2x + 7
- BC = 2x + 7
- BC = 2*9 + 7
- BC = 25
